There are many families and children where going no contact with parents makes perfect sense, is justified by years of abuse and ongoing conflict, and would benefit the child.

This specific situation sounds like this is not "it". You are a vulnerable individual with many issues and your parents, while not textbook perfect, do not seem abusive or even neglectful.

You seem to be blaming them for having mental issues and lack of social life. You may be right, but you have not presented the evidence. Please get mental help and be open minded about possible reconciliation in the future. Ultimately, being adult, you need to play a key role in fixing your problems.